Department of Biosystems Engineering, University of Nairobi, Nairobi, Kenya - Articles

Optimization of the Angle of Frog in Mouldboard Tillage Operations in Sandy Clay Soil (Articles)

Angela Hiuhu, Ayub Njoroge Gitau, Duncan Onyango Mbuge, John Ndisya Mulwa

Open Journal of Optimization Vol.4 No.4, December 11, 2015

DOI: 10.4236/ojop.2015.44013 4,223 Downloads 5,778 Views Citations
Diesel Engine Emissions and Performance Characteristics under Cape Chestnut Biofuel (Articles)

Jedidah W. Maina, Ayub N. Gitau, James A. Nyang’aya

Journal of Power and Energy Engineering Vol.1 No.6, November 25, 2013

DOI: 10.4236/jpee.2013.16002 4,399 Downloads 7,598 Views Citations
Micro Hydro Potential Modelling: Integrating GIS into Energy Alternatives for Climate Change Mitigation (Articles)

Gerald C. K. Chelelgo, David N. Siriba, Elijah K. Biamah

Journal of Geoscience and Environment Protection Vol.4 No.8, August 25, 2016

DOI: 10.4236/gep.2016.48005 2,678 Downloads 4,691 Views Citations
Review of Soil Water Retention Characteristic (SWRC) Models between Saturation and Oven Dryness (Articles)

Vitalis K. Too, Christian T. Omuto, Elijah K. Biamah, John P. Obiero

Open Journal of Modern Hydrology Vol.4 No.4, October 21, 2014

DOI: 10.4236/ojmh.2014.44017 8,586 Downloads 11,523 Views Citations
The Effect of the Operational Parameters on the Draft Requirement of Ripping in a Sandy Clay Soil (Articles)

John Ndisya, Ayub Gitau, Duncan Mbuge, Angela Hiuhu

Open Journal of Optimization Vol.5 No.1, March 3, 2016

DOI: 10.4236/ojop.2016.51001 3,050 Downloads 4,336 Views Citations
Determination of Irrigation Supply Efficiency in Challenging Environment Case Study of Bal’ad District, Middle Shabelle Region in Somalia (Articles)

Abdirashid A. Omar, Christian Omuto, Stephen Ondieki

Computational Water, Energy, and Environmental Engineering Vol.8 No.1, January 9, 2019

DOI: 10.4236/cweee.2019.81001 1,346 Downloads 3,128 Views Citations
Suitability of Soil Water Retention Characteristic Models (SWRC) in Regions and Soil Depth (Articles)

Vitalis K. Too, Christian T. Omuto, Elijah K. Biamah, John P. O. Obiero

Journal of Water Resource and Protection Vol.11 No.6, June 26, 2019

DOI: 10.4236/jwarp.2019.116044 891 Downloads 2,273 Views Citations
Optimization of Specific Draft Requirement and Hitch Length for an Animal Drawn Sub-Soiler: A Case of Sandy Clay Loam Soils (Articles)

Nicodemus K. Mwonga, Ayub N. Gitau, Joackim M. Mutua, Simon T. Mwangi

Open Journal of Optimization Vol.8 No.3, September 9, 2019

DOI: 10.4236/ojop.2019.83008 537 Downloads 1,757 Views Citations
Assessment of Super Absorbent Polymer (SAP) on Plant Available Water (PAW) in Dry Lands (Articles)

Vincent Ng’eno, Christian Omuto, Duncan Mbuge, Vitalis Too

Engineering Vol.15 No.2, February 17, 2023

DOI: 10.4236/eng.2023.152008 419 Downloads 1,432 Views Citations
Optimizing the Performance of a Manually Operated Groundnut (Arachis hypogaea) Decorticator (Articles)

A. N. Gitau, P. Mboya, B. N. K. Njoroge, M. Mburu

Open Journal of Optimization Vol.2 No.1, March 29, 2013

DOI: 10.4236/ojop.2013.21004 9,280 Downloads 18,923 Views Citations
Influence of Land Cover Changes and Climatic Variability on Discharge Regime of Njoro River Catchment in Kenya (Articles)

Kennedy Kitonga Mwetu

Open Access Library Journal Vol.6 No.7, July 10, 2019

DOI: 10.4236/oalib.1105461 518 Downloads 1,601 Views Citations
Assessment and Prediction of Effects of Geo-Environmental Hazards on Road Infrastructure Using an Ensemble Modeling Approach: A Case Study of Limuru - Mai Mahiu - Narok Road and Its Environs, Kenya (Articles)

Evangeline Muthoni Njeru, Daniel O. Olago, John P. O. Obiero, Lydia Olaka

Advances in Remote Sensing Vol.14 No.3, August 6, 2025

DOI: 10.4236/ars.2025.143007 91 Downloads 604 Views Citations
Development of Pedotransfer Functions for Saturated Hydraulic Conductivity (Articles)

John P. O. Obiero, Lawrence O. Gumbe, Christian T. Omuto, Mohammed A. Hassan, Januarius O. Agullo

Open Journal of Modern Hydrology Vol.3 No.3, July 9, 2013

DOI: 10.4236/ojmh.2013.33019 4,985 Downloads 8,439 Views Citations
Evaluating Physico-Mechanical Behaviour of Pyrethrum Using Principal Component Analysis and Response Surface Modeling for Optimal Design and Performance of Precision Harvesters (Articles)

Andrew Mwamba, Frankline Mwiti, Solomon Mulindi

Open Journal of Optimization Vol.14 No.4, December 1, 2025

DOI: 10.4236/ojop.2025.144009 67 Downloads 384 Views Citations
Application of Geographic Information Systems in Groundwater Prospecting: A Case Study of Garissa County, Kenya (Articles)

Christopher N. Muhwanga, John P. O. Obiero, Faith N. Karanja

Journal of Geographic Information System Vol.10 No.4, August 23, 2018

DOI: 10.4236/jgis.2018.104023 1,342 Downloads 4,404 Views Citations
The Implication of Unreliable Urban Water Supply Service: The Case of Vendor Water Cost in Langata Sub County, Nairobi City, Kenya (Articles)

E. A. Ochungo, G. O. Ouma, J. P. O. Obiero, N. A. Odero

Journal of Water Resource and Protection Vol.11 No.7, July 31, 2019

DOI: 10.4236/jwarp.2019.117055 1,792 Downloads 4,437 Views Citations
Comparing Pre-Paid Communal Water Metering and Delegated Management in Urban Poor Setting: Case Studies in Nakuru and Kisumu in Kenya (Articles)

Robert Hanjahanja, Christian Omuto, Elijah Biamah

Current Urban Studies Vol.6 No.4, November 19, 2018

DOI: 10.4236/cus.2018.64026 868 Downloads 2,494 Views Citations
Effect of Gum Arabic as Partial Replacement of Cement on the Durability Properties of Compressed Laterite Blocks (Articles)

Alladjo Rimbarngaye, John Nyiro Mwero, Erick Kiplangat Ronoh

Open Journal of Civil Engineering Vol.11 No.4, November 23, 2021

DOI: 10.4236/ojce.2021.114023 503 Downloads 2,620 Views Citations
Compressive and Flexural Strengths of Cement Stabilized Earth Bricks Reinforced with Treated and Untreated Pineapple Leaves Fibres (Articles)

Nounagnon A. Vodounon, Christopher Kanali, John Mwero

Open Journal of Composite Materials Vol.8 No.4, October 30, 2018

DOI: 10.4236/ojcm.2018.84012 2,121 Downloads 5,587 Views Citations
Influence of Tea Plantations, Forest and Mixed Farming on Stream Flow and Sediment Loads, Case of Sondu Miriu River Basin, Kenya (Articles)

Nancy C. Koech, Johnson U. Kitheka, Hesbon Otieno

Open Journal of Modern Hydrology Vol.12 No.4, October 9, 2022

DOI: 10.4236/ojmh.2022.124009 225 Downloads 1,040 Views Citations

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